Our products are designed and manufactured according to standards, including respirator standards such as EN 149、EN 143、NIOSH 42 CFR Part 84、EN 14683、ASTM F3502、GB 2626、GB/T 32610、GB 19083、YY 0469、YY/T 0969, etc. Filter standards such as ISO 16890、EN 1822、ISO 29463、ISO 11155、IEST-RP CC001.5、GB/T 14295、GB/T 6165、GB/T 13554, etc.
From the perspective of users, our products have good practicability and high accuracy. Our customers are distributed in filter media, masks, filters (element), clean rooms and other industries, as well as environmental protection industries with monitoring requirements for air quality. Customers include relevant production enterprises, testing institutions and research institutes at home and abroad.
ISO 29463 originates from EN1822, which defines EPA, HEPA and ULPA filters commonly used in industry. While ISO 29463 maintains the classification of EPA, HEPA and ULPA.But replace E10-E12, H13-H14 and U15-U17 with the following 13 filter levels. The ISO 29463 can't replace EN 1822, EN 1822 will continue to be valid.
The reliability of "Scince Purge" testing equipment has been recognized by many customers, especially 1406D, 1406YO, 1802D, 1802YO and other models are favored in the second-hand market. Recently, we have received feedback from the market that due to poor use and maintenance, improper operation of untrained personnel,etc, the following problems have occurred. Including the internal parameters of the equipment are confused, the circuit board is corroded, tetc. In addition, we found that some employees who left our company continued to engage in the after-sales service without our authorization, and resell second-hand "Scince Purge" equipment. The above situation will not exclude the behavior of modifying some internal parameters of the equipment in violation of the principles of our company, which will inevitably lead to the distortion of the test results. Therefore, our company decide to take measures helps the end users to identify and avoid the adverse mpact of such events on users.
What is MERV？American National Standards Institute (ANSI) and American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) standard 52.2, MERV is minimum efficiency reporting value.It is wrong to say that the higher the MERV, the better the filter. MERV is designed to enable users to select appropriate filters according to the size of particles they want to remove. MERV system is to grade filters, not to comment on which filter is better. Is the protection effect good if the MERV grade of the filter is appropriate？The answer is no. Correct installation is also an important means to ensure the filter efficiency.
