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Medical Forum / Diseases and Disorders / Asthma / July 2006Air Cleaners USED in Sears and Large Retail Chains
I went over this topic before but if someone cares to go over it again I would appreciate.it. Had I not experienced a marked difference in air quality I would probably think another option like cleaning the air inside would be useless but unlike most commercial products available to homeowner except for hepa filters ( limited benefit) Its difficult to replicate that kind of air quality change that I have found at certain pharmacies and supermarkets and at Sears . I am supposing each of these systems is based on sophisticated systems with huge vents and ductwork but the interesting thing is how does it change the air so well? I doubt Sears has guys cleaning the filters all day yet the air seems to be very good in the newer stores. Anyone have a clue? Finally here is another claim for aircleaners consumers are suppose to sort thru. www.envirosoutions.ws thing > is how does it change the air so well? I doubt Sears has guys cleaning the > filters all day yet the air seems to be very good in the newer stores. > Anyone have a clue? > Finally here is another claim for aircleaners consumers are suppose to sort > thru. > www.envirosoutions.ws Normally any public place must have a percentage of the CONTINUOUSLY circulated air replaced by fresh air. (So many cu ft per square foot of space depending on occupancy). The filters are generally a roll type with automatic advance based on the pressure drop across the filter. They would be alarmed when the filter got to the end of the roll, or if the pressure drop exceeded 1 inch of water column(or thererabouts). This can also be done with "air washers" where treated water is sprayed across the stream. Water is treated as necessary and drained and replaced continuously. When installed properly the work great, clean well. If the Building engineer, or maintenence contractor, is lax, all bets are off. Now saying all of that, enforcement is lax in some places. Exceptions are made for parochial schools , churches,for some reason and bowling alleys get away with murder regarding this. Hope this helps. > thing >> is how does it change the air so well? I doubt Sears has guys cleaning [quoted text clipped - 29 lines] > > Hope this helps. thanks mark, But it all sounds a little out there to me. What is a roll type and how does the air feel so fresh.? You might have fresh air coming in continusouly but if its not clean like here where I live for example, what good is it? Sears and some large chain grocery and pharmacies (but not all )usually have almost unreal clean air. How do I know? Well my body shuts down once the air reaches moderate amounts of polluntants, so when I go to these stores I just smell and react to clean air. What I do notice is huge air vents which must cost huge amounts of money . If there was someway to get that into a home.. even though I do think mold is any issue to many homes too . Its funny though these chains are not asking for advice about clean air machines, and they probably know whats going on and why in their buildings. > thanks mark, > But it all sounds a little out there to me. What is a roll type and how does > the air feel so fresh.? You might have fresh air coming in continusouly but > if its not clean like here where I live for example, what good is it? As I said, it seem fresh because it IS fresh air, added to a percentage of recirculated air. Monitored continuously for temperature and humidity. The filters are monitored for cleanliness by measuring pressure drop. Roll filters are, ....filters on a roll, perhaps up to 6 feet in height which are suspended across the air flow. The take up roll on one side, supply roll on the other, advanced automatically per the pressure drop.(kind of like the old piano player rolls, only way larger). The air , of course, passes through the filter media. So the air is clean, fresh, and properly humidified any time there is occupancy. When the building is vacant, the system normally goes on 100% recirculated air to save money, unless the building contents require otherwise. (furniture, plants, animals, etc) >> thanks mark, >> But it all sounds a little out there to me. What is a roll type and how [quoted text clipped - 21 lines] > recirculated air to save money, unless the building contents require > otherwise. (furniture, plants, animals, etc) Thanks again Mark What filter machine or system do you recommend for homeowners ? |
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