Page 53 - CIJ March 2024 - Digital Edition
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Know Your Product



                             EPA filters represent a   the atmosphere
                             significant technology   required in the
                             to improve air quality   area for the
                             across different     manufacture
                 Henvironments,                   of drugs and
                  from healthcare facilities and   injectables.
                  industrial settings to homes and   Control of
                  offices. By efficiently capturing a   particles in the
                  wide range of airborne particles,   air to a desired
                  including pollutants, allergens, and   size can be
                  pathogens, HEPA filters effectively   achieved through
                  aid in protecting public health   the usage of filters.
                  and enhancing the well-being of   Typically, the
                  individuals. Their ability to trap   number of particles                Kriti Kelkar
                  particles as small as 0.3 microns   per cubic meter of air is
                  with a 99.97% efficiency rate makes   the critical question to be
                  them a valuable tool in the fight   answered in the above settings.
                  against air pollution and the spread   The requirements are critical and
                  of airborne diseases.           clearly defined. For example, the
                                                  allowance of permissible limits     As we continue to face
                  What applications of HEPA       like 0.5-micron particles per meter   environmental challenges
                  filters and its functions?      cube of air will decide the need to   and health concerns related
                                                  use HEPA or other inferior filters   to air quality, the role of
                   HEPA filters are more          which are efficient but cannot be
                  widely used for example in the   compared to the efficiency of HEPA   HEPA filters in providing
                  manufacture of pharmaceutical   filters. HEPA filters are sacrosanct   clean, and safe air will
                  products, clean rooms, nuclear   and come with the need to follow      remain supreme.
                  facilities, electronic industries,   a stringent set of protocols.
                  manufacture of solar panels, food,   Everything is documented and
                  and beverages. Using HEPA filters   preserved to be produced at audits.
                  ensures the securing of a clean   This ensures the efficacy of the
                  atmosphere devoid of bacteria and   HEPA filter. This structure of use is   HEPA-filtered air in any room,
                  arresting all particle sizes equal to   unattached to inferior filters fitted   it filters out contaminants and
                  and greater than 0.3 microns.   in conjunction with the HEPA filter   provides clean air but does not
                   HEPA filters’ usage is effective   or others used on their own.   regulate the temperature of the air.
                  when used in conjunction with     HEPA filters are used in buildings   Really good air conditioning is
                  other inferior filters to meet clean   to supply clean and healthy air.   required to supply air at a specific
                  atmosphere requirements. As     Many new devices are in the     temperature. In winter, the air is
                  a stand-alone filter, it will clog   market like air purifiers which   very dry, and it is not good for
                  quickly and they are not cheap.   are largely used in commercial   health to anyone exposed for eight
                  The inferior filters are put in a   establishments and at home as   to nine hours. We need to add
                  sequence first to capture larger dust   well. The HEPA filters used vary   humidity to the air by fitting in
                  particles, finer dust particles, and   in size. Commercial buildings use   humidifiers to achieve the desired
                  even finer dust particles, and then   HEPA filters which are bigger - 2   air humidity.
                  you add a HEPA filter which is now   ft x 2 ft x 1 ft. There are terminals
                  sufficiently protected by the others   in buildings that promise you good   Coastal areas where the humidity
                  in front of it. This arrangement   indoor air quality and additionally,   is very high are problematic,
                  enhances the life of a HEPA filter.   they are used in air purifiers.   and there is a need to control
                   In some segments like operation                                and reduce humidity. We need
                  theatres in hospitals, clean air   How different are HEPA       an air dehumidifier to achieve
                  devoid of bacteria and some viruses   filters to dehumidifiers?  the desired degree of humidity,
                  has to be supplied for patients’                                and temperature, pass it through
                  well-being. In pharmaceutical     An air dehumidifier is a gadget   filters, and get air that is controlled
                  manufacturing for drugs or      that functions by regulating the   for particles, temperature, and
                  injectables, there are guidelines on   air quality. Whenever you provide   humidity.           CIJ


                                                                                Clean India Journal•MARCH 2024  53
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