air cleaning वाक्य

Dissatisfied with existing products, he set out to build a line of portable air purifiers with medical grade air cleaning performance.
For example, air cleaning is one of the Engelhard Corp .'s growing segments, but it accounts for only 20 percent of sales.
NASA researchers suggest efficient air cleaning is accomplished with at least one plant per 100 square feet of home or office space.
It is possible to adjust the air cleaner to reduce the smell, but that also reduces the air cleaning efficiency of the unit.
In September 2007, the California Air Resources Board announced a ban of indoor air cleaning devices which produce ozone above a legal limit.

In 2006, IQAir introduced its first air cleaning system to work in conjunction with ducted forced-air heating, ventilation and air conditioning ( HVAC ) systems.
Buildings are designed or intended to respond actively to some of these changes in and around them with heating, cooling, ventilating, air cleaning or illuminating systems.
This law, which took effect in 2010, requires testing and certification of all types of indoor air cleaning devices to verify that they do not emit excessive ozone.
The measures involved delivery of the 2013 air cleaning program, linkage mechanism with the three surrounding provinces and improvement of the ability of early warning of emergency situation.
Photocatalytic materials have been used for their ability to kill many microorganisms and therefore can be used for self-cleaning surfaces as well as air cleaning, water purification, and antitumor activity.