3 ms·
IQAir GC MultiGas models do both. There's the 'prefilter' on the bottom (inlet), a big fan in the middle, and a bunch of gas filter canisters on top.
by rachelbythebay 6y ago
IQAir GC MultiGas models do both. There's the 'prefilter' on the bottom (inlet), a big fan in the middle, and a bunch of gas filter canisters on top.