More hotels are adding air purifiers and filters to their guest rooms, either because the outside air is prone to smoke or pollution, or because guests demand them for health reasons.
SHIVANI VORA, NY Times: Science
Tue, 02/12/2019 - 3:00am
More hotels are adding air purifiers and filters to their guest rooms, either because the outside air is prone to smoke or pollution, or because guests demand them for health reasons.