Ventilating apparatus including structures defining substantially closed spaces for containing respirable air; apparatus for purifying air within a substantially closed space including air filters, air filtering materials, air purging apparatus and installations including control devices for purging air within a substantially closed space with respirable air, air flushing apparatus and installations including control devices for flushing air within a substantially closed space with respirable air, air purifying apparatus and installations, air filtering apparatus and installations, air conditioning apparatus and installations, air scrubbers and air scrubbing installations, cubicles, enclosures, cubicles defining a substantially closed space for containing respirable air, enclosures defining a substantially closed space for containing respirable air, parts and accessories for all the above-mentioned goods

All services in this class relating to the transportation and exchange of documentation