Commercial vacuums have become an indispensable cleaning electronic gadget for offices, restaurants, hotels and other commercial establishments. There are innumerable different brands of vacuum cleaners available consisting of a wide price r...英国华人论坛
The good news is that High Efficiency Particular Air filters in vacuums can restrain even the smallest dust particles, down to 0.3 microns in diameter, for about 99.97% at all times. These filters lock in dust mites, molds, smoke, pollens, a...英国华人论坛
Lurking Pollutants The size of most airborne pollutants is measured in microns(one-millionth of a meter). Common and harmful airborne particles rangein size from 2.4 microns to .3 microns. Below are some common householdparticles and their w...英国华人论坛