General cleanroom basic principle: 1. purification plant wall, the top sheet generally use more steel plate 50mm thick sandwich color, which is characterized by beautiful, strong rigidity. Circular wall, door, window frames and other general uses special aluminum oxide can be manufactured 2. ground floor epoxy floor gravity or high wear-resistant plastic flooring, anti-static requirements, the choice of anti-static type. 3. The return air duct made of hot galvanized plate, posted good insulation effect purification PF retardant foam plastic board. 4. HEPA stainless steel frame, beautiful and clean, perforated metal mesh panels with aluminum paint, no rust dust-free, clean purification parameters should ACH: 100,000 ≥15 times; 10000 ≥20 times; 1000≥30 times. Pressure: the main workshop adjacent to the room ≥5Pa average wind speed: 10, 100 0.3-0.5m / s; winter temperatures> 16 ℃; summer <26 ℃; fluctuation ± 2 ℃. Temperature of 45-65%; 高标准 powder workshop humidity around 50% is appropriate; electronic workshop slightly higher humidity to avoid static electricity. Noise ≤65dB (A); add new wind capacity is 10% -30% of the total air volume; illumination 300LX purification principle purify airflow early effect → → → in effect purify air conditioning fan blower → → → efficient purification pipeline blown air → room → away dust particles such as bacteria → → return air shutters early effect purification process is repeated, you can achieve the purpose of purification.