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100 mm anti-pollen and insect filter. blocks the entry of pollen, fine dust, and insects in ventilation systems for Indoor cultivation. Galvanized steel box, G4 non-woven fabric mesh, and airtight connection to 100 mm ducts for clean and constant operation.

The Anti-pollen and insect filter 100 mm. consists of a metal box made of galvanized steel that houses a flat filter of synthetic non-woven fabric with filtration class G4. The filtering medium is attached to a high-strength steel wire frame, and the housing incorporates lever locks for quick access to the replaceable cartridge.
The connection with ducts is made by flanges with rubber gaskets, creating a hermetic connection that prevents leaks and maintains negative pressure in the cabinet. When installed in the air injection intake, it drastically reduces the entry of pests (thrips, fungus gnat, aphid), external pollen—including male plant pollen capable of traveling kilometers—and particles that compromise the health of plants and carbon filters.
The 100 mm format integrates effortlessly with Sonoconnect/Aluconnect tubes, elbows, reducers, and clamps commonly used in cannabis cultivation accessories.
With periodic maintenance, the G4 element maintains airflow and helps stabilize temperature, humidity, and VPD by minimizing obstructions in the line.
At Hydroponics Blanes, Grow Shop in Spain and trusted Grow Shop, technical advice, discreet shipping, and 24/48 h delivery (depending on stock) are offered to equip rooms and cheap indoor grow tents with an effective physical barrier against contaminants.
In indoor cultivation, installing the filter at the air intake prevents external particles from entering the tent and contaminating the surface of leaves, flowers, and equipment. The G4 mesh (pre-filtration) retains coarse dust, fibers, insects, and most pollen, protecting fans, intake fans, and carbon filters to prolong their lifespan.
It is used to retain pollen and insects before they reach the inside of the grow, reduce dust deposition, minimize the risk of unwanted pollination, and improve the hygiene of the ventilation system. A cleaner environment favors transpiration, reduces mold incidents, and stabilizes extraction/impulsion performance.
It works as a pre-filter in injection lines connected to 100 mm ducts. The galvanized box withstands continuous use, and the lever locks allow quick replacement of the filtering medium without dismantling the entire installation. The rubber gasket on the flanges provides a tight seal to maintain negative pressure.
Available at Hydroponics Blanes, trusted Grow Shop with a wide range of cannabis cultivation accessories, ducts, clamps, and filters. Service with discreet shipping, 24/48 h delivery (depending on stock) and free shipping from €40 up to 25 kg in mainland Spain. Excellent option to complete projects with cheap indoor grow tents at Grow Shop in Spain.
The Anti-pollen and insect filter 100 mm. offers practical protection for injection lines in indoor cultivation spaces: galvanized steel box, G4 filter of non-woven fabric, hermetic connection, and lever locks that facilitate maintenance.
A simple solution to keep the air cleaner, available at Hydroponics Blanes with expert advice and discreet shipping.