NEED CURRENT BOOSTER MANUFACTURING COMPANY + CAPACITORS

I give you Doctorate in Electrical Engineering and recommend for Nobel prize in Engineering and science.

No idea what a "current booster" would be. Current (Amperes) is a measure of use, not supply, although supply sources have a maximum current capacity that they can safely handle. So loads use current, therefore the only way to "boost" the current that a load uses is to increase the load. A supply system, i.e. a utility source delivered via transmission equipment, has a maximum current capacity that is in essence based on the thermal damage curve of the equipment. You cannot "boost" the capacity for that equipment to safely handle more current (short of maybe using cryogenics?).

Capacitors store a lot of energy potential, but not a lot of real useful energy, because they tend to discharge very quickly. So to be able to fully power a fan for 1-2 seconds with capacitors alone would be like using a massive rubber band to keep your car going up a hill at the same speed when the engine is shut off. It can be done, but you aren't going to like what it will take to do it.

Power Loss Ride Through for relatively large loads such as motors is the stuff of expensive backup energy sources, often called UPS systems (Uninterruptible Power Supply), of which there are electronics versions with batteries, and rotary ones that use large high inertia masses like flywheels to keep power on during outages. It may be less expensive to reconsider why a 1-2 second loss of air flow would be so critical in your system first.