EN 779:2002 CLASSIFICATION SYSTEM

The EN 779:2002 classification system (comprising groups F and G filters) has been changed to three groups (F-,M- and G-filters). Filters found to have an average efficiency value of less… Read more

HEPA FILTER UPGRADE IN AIR HANDLING UNITS, THINGS TO PAY ATTENTION

Recently, after the new type of coronavirus epidemic, we are getting questions about installing HEPA filters in air handling units of commercial and public buildings such as offices, schools, shopping… Read more

CAN HEPA FILTER CAPTURE THE CORONAVIRUS?

Regarding the Coronavirus (COVID-19) epidemic, the most common question asked about filtration is that “Can HEPA Filter capture the viruses?” The answer to the question; Yes, HEPA Filters captures the… Read more

Chemical Filtration

Gas phase filtration and particulate filtration work together for acceptable indoor air quality in controlled environments. Gas pollutants are filtered with Ulpatek's gas phase air filters which are produced from… Read more

HEPA Filters

HEPA filters used in clean rooms and related test standards. Prof. Dr. F. Taner Özkaynak ABSTRACT Usage of HEPA filters in cleanrooms is increasing rapidly, especially in the applications concerning… Read more

Effect Of Measuring Method

Work done under the sponsorship of ASHRAE and private organizations such as filter manufacturers showed that the percentage distribution of particle sizes in the atmosphere depended significantly on the method… Read more