Are you surprised that the airport pictured below (I assure you, it is a real place) has also installed high-capacity air filters and UV sanitization?
Since the onset of COVID-19, the air-conditioning system filters across the passenger terminals have been upgraded from MERV-7-rated models to MERV-14-rated ones. These higher grade filters can effectively remove about 85 per cent of the particles of 0.3 to 1.0 micrometres in size in the air, smaller than the size of a COVID-19 particle in a respiratory droplet.
To ensure the MERV-14 rated filters continue to operate at effective efficiency, they are replaced every one to two months, depending on the condition of use. All used filters are sealed for proper disposal by maintenance workers donning the highest level of personal protective equipment (PPE) for safe handling.
In addition, fresh air intake for the air-conditioning systems have also been maximised by fully opening the dampers to admit outdoor air.
As a further layer of protection, Changi Airport is installing Ultraviolet-C (UV-C) sanitisation equipment in Air-Handling Stations (AHS) and Air-Handling Units (AHU) progressively across all terminal air-conditioning systems. The UV-C kills any remnant virus traces in the mixture of fresh and returned air passing through the cooling coil, providing a second level of defence after the MERV-14 rated filters.
Singapore will thus have air filtration and UV sanitization in the airport before we have it in the hospitals.
Is the future slipping away from the United States? It seems that way sometimes. Only the high-tech sector is keeping us afloat and, of course, that is under attack by the elites.
Hat tip: Randall Parker.
Photo Credit: Matteo Morando.