The Dust-free air blower from JJC is a particle-free, clean air bulb system that has dual filters placed in the back and in the front of the blower. Its "No-backflow" design ensures a clean, strong blast of air, it is a safe and perfect cleaning solution for your digital SLR, lenses, filter and other sensitive electronic equipments. The larger oval-shaped bulb increases air capacity, and when the bulb is squeezed the air is propelled at a much faster rate. Additionally, its two single-way air valves are set at both air inlet and outlet to ensure the one way air flow and avoid the duty air flowing back, therefore only clean air is blown out. Filter at air inlet is equipped with quality filtering cloth, which can filter dust particles with diameter over 21 microns, completely filters out all dust particles and debris.The body of the blower is made of silicone and has been coated with an anti-dust repellent, which is soft, comfortable to your skin and does not allow dust to attach itself to the exterior and interior of the bulb. Also, the coating gives a clean look to the exterior of the bulb. The round base helps to keep a standalone upright position of the bulb, which makes it convenient to pick up.The long blowing nozzle can clean dusts at deep parts, and the soft silicone nozzle cap can effectively avoid accidental surface scratching.Highlight:1. Large volume of air output, efficiently clean dusts 2. Long blowing nozzle for cleaning dusts at deep parts 3. Silicone nozzle cap avoid accidental surface scratching 4. Single-way air valves at both air inlet and outlet ensure clean air blown out 5. Filter at air inlet can avoid dust particles with diameter over 21 ?m from enteringPackage includes: 1 x Silicone blower, 3 x Replaceable filter, 1 x Plastic spanner wrench, 1 x Manual