maintenance and reparation of installations and apparatus for the purification of air and water as well as of air and water measuring installations and apparatus

[electric fans; ceiling fans; fans for machine engines; ventilation hoods; air filters for domestic use; air filters for industrial installations; air filters for air conditioning units; water filtering units for domestic use; water filtering units for commercial use; water filtering units for industrial use; gas scrubbers; air conditioners; sterilizers not for medical purposes, namely, air sterilizers, hot air sterilizers, tunnel sterilizers, steam sterilizers, autoclaves; aerosol dispensers not for medical use]

[sterilizers for medical use, aerosol dispensers for medical use]

"CLEAN AIR SERVICE"

furniture for use in clean rooms, namely, purified air work benches