Lead-plate electric precipitator
Leak detection system
Leak-free furnace air filter mounting assembly
Lid for auxiliary dust removal receptacle
Life support system for personnel shelter
Lifting handle for air purifier
Lightweight filter
Linear drive unit for cleaning filters
Lint collecting system and apparatus
Lint collector
Lint disposal apparatus
Lint trap
Lint trap unit
Liquid absorbing filter assembly and system
Liquid based air filtration system
Liquid cartridge
Liquid de-gassing unit
Liquid deaerating apparatus
Liquid debubbling apparatus and method
Liquid degasification device