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Leigh J, Georgia

The NA-50s arrived, very pleased, particularly as they're nearly silent, and the one in the bathroom really does knock out litter box odor (3 boxes). The reason I bought them (and may be buying more) is to deter cats from spraying in the house — having tried everything else to no avail. The 2nd unit is next to a small table that's been sprayed daily for over a year, unknown why - clean it daily, have tried pheromones, No-Mark, herbs, etc. In the 5 days the NA-50 has been there, table has been sprayed once, an improvement, but must monitor for weeks/months before declaring it a success. If this is the answer (perhaps removing odors offensive to cats, which prompt them to spray), it's a Godsend to cat people. I'll keep you posted.

How much reduction in particulate pollution is possible in the average home?

This is a tough question. We think 90% is easily obtainable with high quality air purifiers, air cleaners, filters, and good practice. This may not be enough and you may want to push the limit. Average counts in the 10 to 20 range on the DC1100 are possible. The air quality throughout the home will vary significantly, but we believe average readings in the 10 to 20 range are possible which, if the outdoor ambient is 500, results in a 96 to 98% reduction in particles within the detection range.

If the manufacturer says the air cleaner will clean 1,000 square feet should I believe this?

Actually the preferred method of rating air purifiers is the CADR which is based on how fast the air cleaner or air purifier cleans the air in a sealed room. This is a useful rating for comparing one air cleaner to another. The problem with this concept is that we don't live in sealed rooms. The truth is that you cannot predict how clean the air will be in your house based solely on the CADR. Nobody's home is perfectly sealed, doors open and close, and particles are generated by virtually any activity within the house. So, the number of particles floating in your home air is the result of a constantly shifting balance between particles entering the home, being generated within the home, natural settling, and active removal by air cleaning devices.

Can the DC1100 tell me if my air purifier is working effectively?

Yes. With the DC1100 you will know the actual number of particles suspended in the air within the units detection range. The numbers displayed are scaled to correspond to approximately what a 12 year old would inhale with each breath. If the counts drop from 600 to say 60 then you know that you have reduced the detected particulate pollution by 90%. How much a reduction you see corresponds to the effectiveness of your air purifiers and air cleaners.

How can the DC1100 be used to improve my home air quality?

The Dylos DC1100 is a tool which gives you information about your indoor air quality. It is a Laser Particle Counter which counts and sizes the invisible particles polluting your home air. With this knowledge you can take intelligent steps to improve your indoor environment. Since the DC1100 gives you an actual count of particles you can adjust those steps to achieve the amount of cleanliness you desire. Quality air purifiers and air cleaners are expensive, but without a way of measuring the cleanliness of your air you cannot know how well they are working in your house.

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