T ensure that the air cleaner(s) do not become overwhelmed by air contaminant emissions is filter all the air 4-6 times each hour 8 times each hour 10 times each hour 12 times each hour frequency of air filtration is commonly known as air changes per hour (ACH).  The level of air cleaning capacity is usually designated in terms of cubic feet of air cleaned per minute (CFM) or delivered1 The table below provides an indication of the volume of air to allocate to each air cleaner in order to achieve the desired ACH. determine the area size a single air cleaner will filter If you have a particular air cleaner in mind and would like to know the size area that it will clean, first determine the delivered airflow in CFM for the air cleaner from it'sThis is generally available from the product literature. Scroll down the left column of the following table to the CFM figure closest but less than the delivered airflow of the selected machine. 

at the volume of air corresponding to the CFM in the table.  volume by the ceiling height of the room to determine the area in square feet. Volume of Air per Machine vs. Contamination Levels (60Hz electric)2buy air purifier sg Volume of air (cubic feet) allocated to angas phase air cleaner with CFM rating in left column versusair duct cleaners ct air cleaner500 CFM will clean 3,750 cuft of air 8 times each hour. Delivered CFM is the rate of air flow through the air cleaner with allBeware, some manufacturers cite 'free flow' CFM or CFM '@0"wg', which refer to the performance of the motor and blower without any air resistance due to theAlthough we only use delivered airflow values, with other vendors, you should always confirm that the figures are delivered and not

free flow as nothing should be left to chance. Figures based on 60HzIf 50Hz electricity is used to operate air cleaner, reduce CFM and Volumes by 20%. The above table was developed using formulas Click Here for more Blueair Pro L Hepasilent® Air Purifier, Large High Capacity Hepa Air Purifica...DetailsBlueair Pro L Genuine Replacement Carbon Filter (1 Set of 2 Filters) FREE Shipping. 35 x 25 x 14 inches 42 pounds (View shipping rates and policies) #350,316 in Home and Kitchen (See Top 100 in Home and Kitchen) #1,000 in Home & Kitchen > Heating, Cooling & Air Quality > Air Purifiers > Parts & AccessoriesAmount of CFM RequiredAmount of Air Cleaners Required CFM = L x W x H x Air Changes per Hour / 60 min Enter - L - Length of your room measured in feet L = Enter - W - Width of your room measured in feet W = Enter - H - Height of your room measured in feet H = Enter - ACH - Air Changes per Hour - from table ACH = Amount of CFM required - CFM = Air Changes per Hour (ACH)LoadApplicationACHLightGeneral Offices

, Computer Rooms6AverageConference Rooms, Break Rooms, Designated Smoking Areas8HeavyBingo Halls, Extra Smokey Areas12 Amount of Air Cleaners = Amount of CFM required / Air Cleaner CFM Capacity Enter - CFM - Amount of CFM required CFM = Enter - CFM Capacity - Air Cleaner CFM Capacity - from table Capacity = Amount of Air Cleaners required - Number = Air Cleaner CFM CapacityModelLowMediumHighX-11Q5007001250C-1280010501250X-400175275400MiracleAir60150400DesignAir235285430CM-11400650850CM-12380630850With the introduction of the AM II, there’s now a complete line of commercial grade air purifiers for different environments. And like the rest of the AeraMax Professional family, it features EnviroSmart technology, it’s an energy efficient way to provide cleaner air.  But which one is right for your situation? But there is a difference. It all depends on the size of space you’re cleaning. While each AeraMax Professional commercial air cleaner is superior at removing allergens, germs and volatile organic compounds from enclosed spaces, air cleaning capacities differ.

That’s why it’s important to match the size of the prospective space and the air purifier’s cubic feet per minute (CFM) cleaning capacity to improve indoor air quality (IAQ). The AeraMax Professional II features the same filter efficacy and auto-detecting technology as the other air purifiers in the commercial lineup, but cleans at a maximum of 100 CFM. It’s specifically designed to clean spaces up to 300 square feet, so it’s ideal for smaller exam areas, waiting rooms, bathrooms and common areas and can remove up to 99.9% of airborne contaminants, as well as clean smoke from air. What’s more, the AeraMax Professional II is the smallest and thinnest of the AeraMax Professional commercial air purifier line. At only four inches deep, it can be recessed to provide an unobtrusive profile in small spaces and is even ADA compliant when recessed. The AeraMax Professional III is the next size up in terms of space capacity. Its four-stage filtration system is designed to remove contaminants in spaces ranging from 300 to 700 square feet—ideal for improving IAQ in most situations.

It cleans at a maximum of 220 CFM. The AeraMax Professional IV is the largest air purifier and is capable of removing contaminants in spaces from 600 to 1,400 square feet. At its maximum setting, it cleans at 440 CFM. All the commercial air cleaner units are available in both wall mount and portable floor stand options. And all remove up to 99.9 percent of contaminants from indoor air. So now, you only need to determine which unit—or units—to accommodate your facility. Air purifier devices based on adsorbents produced from valorization of different environmental hazardous materials for ammonia gas control Air Pollution Department, Division of Environmental Research, National Research Centre, 33 EL Bohouth St., Dokki, P. O. 12622, Giza, Egypt Fax: +20 2 33370931 Tel: +20 2 33371362 The present study aimed to find a beneficial solution for waste recycling and disposal by converting it from an environmental load to products useful for air pollution control.

This work investigated the possibility to convert cow dung, rice straw and Eichhornia crassipes (lotus plant) to activated carbons by chemical activation using phosphoric acid (H3PO4) impregnation. The prepared activated carbon samples were characterized using BET analysis for determination of the surface area and FTIR analysis was also used to give a basic understanding of the surface functional groups of the samples. The results showed that the prepared activated carbon from Eichhornia crassipes (ECAC) had the highest surface area (1200 m2 g−1) compared to activated carbons from both rice straw (RSAC, 900 m2 g−1) and cow dung (CDAC, 700 m2 g−1). The efficacy of the prepared activated carbon samples to remove ammonia gases was studied. It was noticed that the adsorption capacity of all prepared activated carbons was higher than that of the raw materials. Ammonia removal efficiency by ECAC was found to be 70% followed by RSAC 60% and finally CDAC 55%. Langmuir and Freundlich models were applied.