Ceiling Filter (Roof Filter) is a dedicated terminal stratified air filter developed for industrial coating workshops, full closed spray booths and industrial ventilation purification systems. Different from ordinary flat filter cotton, this ceiling filter adopts gradient encrypted composite polyester fiber structure, combined with whole-piece glue reinforcement treatment to stabilize integral fiber structure without loose fiber shedding. Designed with layered progressive filtration logic, coarse fiber layer intercepts large particulate impurities firstly, and dense fine fiber layer captures tiny suspended particles secondly, forming two-stage stratified purification. The whole filter is silicone-free, avoiding silicone contamination causing paint fisheye defects in spraying process.
It complies with EN779 F5/M5 and EUROVENT EU5 filtration standard, with stable air permeability to make airflow spread evenly inside spray booth, improving workpiece spraying uniformity. Featuring elastic anti-wrinkle performance, it will not deform under long-term air blowing. It has professional flame retardant, high temperature and moisture resistant performance, meets industrial spraying fire safety specification, and has ultra-large dust holding capacity to reduce frequent replacement frequency, ideal for long-cycle industrial workshop air terminal filtration.
| Parameter Item | Specific Data & Standard |
|---|---|
| Filter Material | Pure Polyester fibre (PET) |
| Filter Class | F5/M5(EN779), EU5(EUROVENT) |
| Filter Target Particle | 1μm fine airborne particle |
| Average Filtration Efficiency | ≥98% (Test Standard: ASHRAE52.1-1992) |
| Recommended Final Resistance | 400Pa |
| Unit Dust Holding Capacity | 600g/㎡ |
| Flame Retardant Grade | F1(DIN 53438)、B1(GB/T 17591-2006) |
| Max Adaptable Relative Humidity | 100% full humidity resistant |
| Constant Resistant Temperature | 100℃ |
| Instant Resistant Temperature | 120℃ |
| Material Property | Silicone-free, elastic, wrinkle-resistant, glue fixed |
Full Interception For Large Dust: Adopts professional glue solidifying treatment, realizes 100% capture rate of dust particles larger than 10μm, prevent coarse dust falling contaminating painted workpieces.
Gradient Stratified Filtration: Step-by-step encrypted fiber layout forms double-layer filtration, coarse layer blocks large impurities, dense layer filters fine dust, improves overall filtration efficiency effectively.
Super High Dust Holding Capacity: 600g/㎡ large dust storage capacity, longer service cycle, reduces shutdown replacement times and workshop operation cost.
Uniform Air Diffusion Performance: Integral stable fiber structure, consistent air permeability in whole area, delivers even and steady airflow inside spray booth, guarantees uniform spraying effect.
Low Initial Wind Resistance: Optimized fiber gap design lowers initial air pressure drop, reduces ventilation fan load, saves workshop power consumption.
Elastic Wrinkle Resistant Structure: High-elastic PET fiber material, anti-compression, anti-deformation, anti-wrinkle, keeps flat shape under long-term air impact.
Silicone-free Formula: Zero silicone component inside filter material, avoids paint crater, fisheye and silicone pollution defects for high-standard spraying production.
Dual Standard Flame Retardant: Passed European F1 and national B1 flame retardant test, restricts flame spreading, meets fire protection requirement of closed spraying workshop.
Extreme Working Condition Adaptability: Tolerates 100% high humidity air, 100℃ long constant temperature and 120℃ instant high temperature, fits hot drying spraying workshop environment.
This ceiling filter adopts gradient thickness PET fiber layered structure. The upper loose fiber layer firstly intercepts hair, fiber debris and dust above 10μm via physical interception; the bottom encrypted dense fiber layer adsorbs 1μm fine suspended particles. Overall glue bonding fixes internal fiber to prevent fiber falling. Uniform mesh gap balances airflow velocity to realize omnidirectional even air supply, completes terminal purification before clean air entering spraying working area.
Automobile full closed spray booth ceiling filtration
industrial coating production line terminal air filtration
furniture spraying workshop roof air purification
hardware electrostatic spraying system final filtering
factory central ventilation deep filtration
industrial air conditioner terminal purification
painting workshop air supply system
dust-free spraying room air treatment equipment
Q1: Why is this ceiling filter also called roof filter?
A1: It is installed on the top ceiling air supply area of spray booth and coating workshop, undertaking terminal air purification work, so it is named roof filter conventionally.
Q2: What is the core advantage of silicone-free design for spraying industry?
A2: Common filter cotton contains silicone ingredient, which will volatilize and cause fisheye, crater flaws on paint surface. This silicone-free ceiling filter will not produce silicone contamination, ensuring high-gloss spraying finished quality.
Q3: What particle size can this F5/M5 ceiling filter filter out?
A3: It captures 10μm and larger dust 100%, and achieves ≥98% filtration efficiency for 1μm tiny particles, meeting terminal purification standard of high-standard spraying workshops.
Q4: What temperature can this filter withstand in spraying drying workshop?
A4: It can work stably under 100℃ constant temperature for a long time, and bear 120℃ instant impact high temperature, suitable for hot air circulation spraying and drying production lines.
Q5: What does 600g/㎡ dust holding capacity mean?
A5: Per square meter filter can accumulate 600 grams dust before reaching 400Pa final resistance, featuring large dust storage volume, long service life and low replacement frequency.
Q6: Is this filter fire safe for closed spray booth use?
A6: Yes. It owns DIN F1 and GB B1 dual flame retardant grade, it can inhibit combustion spread, comply with closed spraying workshop fire safety management standards.
Q7: Will the filter fiber loose and fall down to pollute painted products?
A7: No. Adopts overall glue treatment technology to fix inner fiber firmly, the fiber will not shed or fly off during air supply operation, no secondary pollution to workpieces.
Q8: When needs to replace this ceiling filter?
A8: Replace the filter timely when the system wind resistance reaches 400Pa recommended final resistance, to guarantee air volume and indoor purification effect.