Quiet efficient air filter combining features of water spray scrubber, cyclonic water scrubber, venturi water scrubber, ionic filter, sonic agglomerator.

air filter generally need (1) efficiency - how much % of particle removed in 1 pass, (2) air volume movement capacity, (3) low noise level, (4) low energy requirement, (5) low maintenance.

Usually, the biggest trade off problem for air filter is that to have high filtering efficiency, the air volume movement capacity goes down, and noise level goes up.

Thus, small household filters are quiet, but can't filter much air or can't have high enough filtering efficiency. Industrial filters are noisy, and power hungry in order to achieve high filtering volume and efficiency.

#1 problem:

reduce power and make the system quiet. The biggest power draw and noise producer is typically the fan motor.