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Air control: which air purifier to choose? Air purifiers from tobacco smoke Air filtration from odor

The chemical industry is moving forward by leaps and bounds, and today in technological processes thousands of anthropogenic compounds are involved, many of which have, to put it mildly, an unpleasant and often disgusting “aroma.”

In this regard, the interest of industry representatives in equipment that can effectively carry out such a process as cleaning or air filtration from odors.

Moreover, in the context of considering the topic of air pollution with foul-smelling compounds, both aesthetic and toxicological aspects should be noted. In addition to simple discomfort caused, for example, by a small concentration of skatole, mercaptans or amines in the workshop, the smell may indicate the presence of much more in the industrial atmosphere hazardous substances.

The origin of the word “mercaptan” is interesting. It is formed by shortening the English expression Mer cury Capt ure (mercury capture) due to the ability to effectively bind mercury-containing compounds.

Olfactometric oil odor map following a collision between two oil barges, USA, Texas, May 11, 2019, source: Houston Weather Service

In addition, one must consider the fact that many of the dangerous, carcinogenic and mutagenic gases and liquids are odorless (and some, for example, smell pleasant), being invisible but merciless killers.

Therefore, if there is the slightest suspicion of a hazardous substance leak, you should immediately consider updating or upgrading your current filtration infrastructure.

For more than three decades, PZGO LLC has occupied a leading position in the Russian market of gas purification equipment, industrial aspiration and ventilation systems, the average efficiency of which in relation to purification (filtration, separation and disposal) of unwanted gases, aerosols, mists, fumes and vapors tends to 100% .

Odorous substances as obvious markers of pollution, some MPCs

In general, the presence of an unpleasant “spirit” in an industrial atmosphere indicates that the substance already has dissipated, left its place of deployment, and in this case it is possible to clear the air of the smell only through centralized ventilation. Moreover, sticky and oily aerosols that coat production surfaces often cannot be removed using an air suction device.

In order to prevent odorous/unwanted components from entering the aeroclimate of a workshop or site, it is necessary to install filters and ventilation ducts precisely in those places where the concentration of pollutants is maximum: above digesters food plant, heating/frying lines, above mixing tanks, at the outlet of the paint booth, above the laser machine.

Table: MPC of some dangerous and foul-smelling substances chemicals

Many of the above compounds are familiar to everyone: vinegar, ethanol, camphor oil, naphthalene, acetone. But it is better not to get acquainted with substances such as phosgene (which, by the way, smells like rotten mown grass).

Despite the fact that phosgene was developed as a weapon of mass destruction for the fronts of the First World War, it is still used today in organic synthesis plants. Phosgene is one of the key components in the production of polycarbonate. There is NO antidote to treat phosgene poisoning.

Filters and equipment for neutralizing industrial odors

When considering air odor filters, it should be noted that the capture of industrial odorants is carried out by the same types of equipment that are designed to provide “traditional” air purification from harmful or unwanted impurities. The logic here is straightforward: there is no substance - there is nothing to smell. The better the pollutant is removed from the air, the more favorable (and safe) it will be for breathing.

Thioketones - Probably the most powerful-smelling compounds. For example, you can smell thioacetone when it is present in the air in a volume ratio of 1/10*12. To make it clearer, compare a piece of paper with the area of ​​the Moscow region

One of the most extensive and important areas in gas purification are wet (absorption) and dry (adsorption) approaches. Let's evaluate both methods using the example of removing some common foul-smelling pollutants.

Methods for removing hydrogen sulfide odor

Hydrogen sulfide is clearly felt even at a concentration of 1.5 mg/m3 (and the lethal concentration is only 0.1% of inhaled air). The danger of H 2 S lies not only in its toxicological effects, but also in its ability to create explosive mixtures with air.

Hydrogen sulfide odor filters are especially in demand due to the fact that at a certain concentration, hydrogen sulfide paralyzes the olfactory nerve, and the smell of rotten eggs is no longer perceptible to humans. Negative Impact gas on the body continues.

Chemical odor removal can be carried out using both wet absorbers and dry adsorption columns. Each deodorization method has its own advantages, which are fully revealed in specific production conditions.

Please note that the functionality of the devices described below also correlates with the detention any other odoriferous, toxic or technologically undesirable components of the air flow.

Wet sorption in scrubbers and absorption plants

Absorption is the process of retaining a gas component in a volume of a liquid reagent. In the case of hydrogen sulfide, alkaline solutions demonstrate maximum reagent efficiency.

Particular example:H 2S+NaOH (caustic soda solution) →NaHS (sodium hydrosulfide) +H 2O

Sodium hydrosulfide obtained as a result of air purification measures can be disposed of economically. As for the physical aspects of the interaction of the pollutant with the absorbent, the following options for the design of the devices are possible (the choice of which depends on the conditions of the site and the wishes of the Customer).

Video presentation of an absorption plant for the absorption of fluorine and hydrogen chloride from sludge

To obtain detailed information on the devices, their characteristics and principles of operation, please follow the blue links (they will open in a new window).

1. Gas capture in . The working chamber is filled with stationary bodies with a large specific surface area, on top of which an alkaline solution is sprayed. Deodorization occurs at the interphase boundary of the liquid microfilm;
2. Hydrogen sulfide recovery (especially in combination with other pollutants) in (APID). The working chamber is filled with polypropylene balls, which move chaotically (boil) in an alkaline solution;
3. The air purifier for smoke and odors can be made in the form of. The main factor in the retention (deblocker) of the pollutant is a self-sustaining layer of unstable foam formed on the surface of the supporting perforated plates due to the passage of air flow through the holes.

Each of the units, when selecting the correct absorbent, is capable of showing odor purification efficiency in the range of 96-99.9%.

The advantages of wet cleaning performed by scrubbers of the ShV series are:

• Ability to handle wet environments without pre-drying – aerosol fogs, vapors, fumes, emulsions, suspensions;
• Possibility of parallel operation as a dust collector, including for the retention of sticky, viscous, clumping dusts of high concentrations, as well as ash, soot (combining mechanical and chemical deactivation of the flow);
• Processing of high-temperature environments, including those with high chemical activity (sulfur oxides, nitrogen oxides, HCl, H 2 SO 4, carbon disulfide, H 2 S);
• Sorbent filters, with rational selection of the reagent, can generate valuable sludge;
• Self-cleaning, no need to replace any functional elements;
• Flexibility, simplicity, quick changeover, full automation of work, affordability, durability and reliability.

Deodorization of gases in adsorption blocks

Another type of chemical odor neutralization is dry adsorption. has its own important features:

• The method is regenerative. This means that the captured components can be subsequently recovered from the adsorbent (for example, after treating hydrogen sulfide from activated carbon high purity elemental sulfur can be recovered);
• Wide selection sorbents allow you to effectively retain a wide range of odorants;
• Adsorbers are not intended for processing humidified streams (in the case of processing humid media, to maintain the nominal efficiency of the device, a dryer must be installed in front of the column);
• There is a need for regeneration (purging) of the absorbent, as well as - periodically - a complete reload of the deblocker (activated carbon, silica gel, zeolite) due to overgrowing of active pores;
• Among other things, it is desirable to install two or more adsorbers at once: one operates in deodorizer mode, the second in filler regeneration mode.

Adsorbent granules – activated carbon

At the same time, adsorption columns show ≈ 100% efficiency against a variety of gaseous pollutants, which makes it extremely rational to use them as final, sanitary links in multi-stage systems and complexes of industrial air and gas purification.

Deodorization of spray booths

Air purification from paint odors paint booth can be carried out effectively using wet scrubbers model range"SHV".

Powder painting process

We will quickly deliver gas cleaning, ventilation and aspiration equipment throughout Russia, the CIS, Europe and Asia and, if necessary, carry out fast and professional installation, commissioning and commissioning.

PZGO LLC – breathe easy!

Correct selection and service air purifiers from tobacco smoke significantly reduces the concentration of smoke in casinos, restaurants, bars, smoking rooms and other public areas. To clean the room atmosphere from the smell of tobacco, the devices are equipped with carbon filters that absorb volatile gases. Electrostatic filters are installed in devices for removing soot from atmospheric gas.

Modern design of household smoke air purifier provides for installation effective photo catalytic filter. The principle of operation of the filter is to oxidize odors, organic compounds, toxic impurities and decompose them under the influence of ultraviolet radiation into neutral components of clean air.

Considering that the size of the destroyed particles is negligible (up to 0.001 microns) small, a device with a photocatalytic filter does not pollute the device itself. Ultraviolet radiation in such devices, it removes up to 90% of the smell of tobacco combustion products in 1-2 minutes.

Design smoke air purifier provides for the intake of untreated gas from one side of the device, and clean air is issued into the room on the other side. Thus, there is no mixing of flows of different concentrations of tobacco smoke, which achieves high quality cleaning.

Tobacco smoke air purifiers effectively eliminate the smell of tobacco, but at the same time breathing gas The smoke itself is not removed from the room. This means that to remove smoke, exhaust ventilation is necessary.

I purchased this air purifier in 2014 for 7 thousand rubles. There was a need for an air purifier in the apartment, since pieces of furniture and old parquet began to give bad smell. Based on reviews on the Internet, we chose this model - AIC 20B06.

The purifier works as follows: it has holes on the sides for air intake, the purified air comes out from above the device itself, very thoughtfully, since the device provides high air circulation in the room. In general, all the holes are made correctly, thereby processing a large volume of air.

As for whether the air purifier copes with its task, otherwise the device may be working and it is not even known whether the air is becoming cleaner; it is not visible to the eye. But it really cleans the air of odors and dust! Since I have some problems with odor in my apartment, which also causes a sore throat, this cleaner solved this problem. When it is turned on, there is no smell, but when you turn off the device at night, the smell accumulates and is felt again in the morning (ventilating the rooms does not help with this).

Also clear example excellent work AIC 20B06. Once there was a fire in one of the apartments at our entrance; the smell of burning naturally penetrated through the cracks in the door; the entire corridor was shrouded in clouds of smoke. The air purifier was immediately turned on. And while it was working for several days, there was no smell of burning in the apartment at all, but as soon as the device was turned off, after 30-40 minutes the smell appeared again, and in the entrance the smell of burning persisted for about another month. This is how we were convinced of the effectiveness of the air purifier.

Externally, the air purifier is nice and fits into any room interior. The size is small. The kit includes a remote control that operates over a long distance. The air purifier is not very noisy, it has a night mode, but this actually means that the display itself becomes dimmer and that’s all, the noise of the device in this case does not change, it is exactly the same as operating the device at minimum speed (3 speeds in total). ). The purifier also has an ionization function and a UV lamp; they can be turned on/off with just one button; the effectiveness of this function has not yet been tested.

Air from a restaurant or cafe hood escaping into a residential area can cause complaints from neighbors and fines from inspection authorities. If the air duct cannot be installed above the roof ridge or on the facade, then the only way to avoid claims is to achieve effective cleaning exhaust air from odors, smoke, soot, burning and grease.

For this purpose, the restaurant kitchen ventilation is equipped with a Tion comprehensive air purification system. It is located immediately after the spark arrester and grease trap and removes smoke and odors from hot shops, barbecues, grills and other sources. This makes it possible to equate the air from the restaurant kitchen hood to household emissions and remove it at the level of the first floor, without causing inconvenience to people living or working in the neighborhood (in accordance with SanPiN 2.3.6.1079-01, clause 4.6).

• To clean the exhaust air of all types of stoves (except wood-burning and barbecues), Tion Ext duct air purifiers are used (capacity from 400 to 27,500 m3/h).
• For cleaning exhaust air wood stoves and barbecues, Tion Ext Advanced duct air purifiers are designed (capacity from 2000 to 6000 m3/h).
• For rooms where the concentrations of removed contaminants are very high, an additional Tion Ext-El restaurant air purification unit from gases and odors is installed.

Air purification from smoke and odors in a restaurant hall

Restaurants, cafes, canteens and other establishments catering often face the problem of food and smoke odors that can be felt in the hall. To improve the quality of service and customer loyalty, it is necessary to properly organize smoke removal and ventilation in the dining area of ​​the restaurant.

The Tion Ext restaurant air purification unit solves the problem of removing smoke and odors effectively and profitably. Thanks to a unique multi-stage cleaning system with smoke filters, the Tion Ext duct air purifier eliminates all types of contaminants.

Tion Ext air purification equipment is placed in the restaurant ventilation system in two ways. It can be installed both in the supply branch and in the recirculation branch after the supply chamber.

Compact air purifiers for restaurant halls

Air purification from odors and smoke in a restaurant can be done using compact autonomous air purifiers Tion Clever.

This great solution for those cases when the restaurant ventilation system does not provide for the possibility of integrating odor and smoke traps into it.

And if smoke filters are already installed in the ventilation of a cafe or restaurant, then compact air purifiers will enhance their effectiveness and increase the air exchange rate. This will create a comfortable environment and attract visitors.

We always want to find the best for ourselves. If you are going to invest money, do so so as not to regret it later. This is especially important when choosing health products. How to choose the best? After all, it is not easy to feel the result of his work. For example, it is very easy to evaluate the performance of a vacuum cleaner, but how well an air purifier copes with pollution is only partly clear, because The most dangerous pollution cannot be seen by the human eye.

What qualities should the best air purifier have?

Definitely than more types The device can eliminate contaminants, the better it is, but at the same time low noise levels, low energy consumption, low costs for replacement filters, convenient operation, reliability and safety, and a pleasant appearance are also important.

1. For many of us, when choosing a cleaner, the main problem that needs to be solved is dust. This means that the best air purifier should remove dust from the air as efficiently as possible. Air purifiers with HEPA filters do the best job of removing dust. In addition, the device must quickly move air through the filter, otherwise it will only clean a small part of the room.

Conclusion 1: The best purifier should have a large area HEPA filter and high air velocity for fast dust removal.

Those. It is better to choose a device that will be designed for a room larger than where you are going to put it. Also pay attention to the air exchange rate of the selected device; it should be 1.5-2 times the volume of your room, so that all the air has time to be cleaned in an hour.

2. Finishing materials and furniture in modern housing and offices emit a lot of harmful chemicals that undermine human health. Various odors often arise from cooking, smoking, neighbors, pets, household chemicals. In an enclosed space, microbes, bacteria, mold, dust mites, which cause allergies and various diseases. Photocatalysis copes best with the problem of odors, microbes, and volatile chemicals.

Conclusion 2: A good air purifier should have a photocatalytic filter to remove odors, germs, and chemicals.

If the problem of dust is not an issue for you, it is important to get rid of only odors; you are not ready to bear the cost of purchasing replacement HEPA filters. In this case, an electrostatic air purifier will be optimal. needs to be decided in advance. If you are bothered by dust, choose a Nera filter; if you are bothered by odors, tobacco smoke, but not so much by dust - Electrostatic.

3. In a closed room, the air becomes “dead”, because... walled and the roof cannot be charged electrically by the sun, the earth, or lightning. In such a space, a person becomes lethargic and begins to get sick often. To prevent this from happening, choose .

Conclusion 3: The best purifier must have ionization to refresh and restore the natural qualities of the air necessary for human well-being.

4. The optimal device will be one that has several operating modes: powerful for quick cleaning when you leave the room, and its noise will not bother you; average when you are in the room, but the noise does not bother you; and almost inaudible - when you sleep.

But with convenient controls, not everything is so simple, because some people like to set different parameters manually, while others like to press one button and forget about everything. Therefore, the most preferable device is the one that has both manual mode, and fully automatic, so that all members of your family are happy.

Conclusion 4: Optimally, the device should have several operating modes, incl. one very quiet no more than 20 dB, as well as manual and automatic control modes.

Considering all these parameters, best air purifiers the following can be mentioned:

AiC AP-1101/1103

The best choice without replaceable filters:

If the problem of odors is not very urgent, but air humidification is necessary, then the best cleaner air may turn out to be an air washer. The sinks humidify the air well due to the large surface of the constantly wetted plates and clean it by driving it through " water bath", while dust and other contaminants stick to the plates and are washed off with water while the drum moves. Washers are worse at removing dust and other allergens than air purifiers with HEPA filters; they can only eliminate unstable odors; they cannot cope with chemical compounds, but also have serious advantages.