We disclose a window blind which purifies the surrounding air using electrostatic interactions. The window blind includes slats which may have a strip of positively charged material, a strip of negatively charged material, or both attached to the top of the slat. In some embodiments, the positively charged material and the negatively charged material are attached to alternating slats. In other embodiments, the positively charged material and the negatively charged material are attached to the top of the same slate with a strip of insulating material positioned between them. The window blind may include an air-moving device which moves air past the slats so that dust particles with either a net positive charge or net negative charge may be attracted to the oppositely charged material on the slat. The air-moving device may be a vacuum or a fan. The positively and negatively charged materials may be removeable for cleaning.

We disclose a window blind which purifies the surrounding air using electrostatic interactions. The window blind includes slats which may have a strip of positively charged material, a strip of negatively charged material, or both attached to the top of the slat. In some embodiments, the positively charged material and the negatively charged material are attached to alternating slats. In other embodiments, the positively charged material and the negatively charged material are attached to the top of the same slate with a strip of insulating material positioned between them. The window blind may include an air-moving device which moves air past the slats so that dust particles with either a net positive charge or net negative charge may be attracted to the oppositely charged material on the slat. The air-moving device may be a vacuum or a fan. The positively and negatively charged materials may be removeable for cleaning.

The present invention discloses an electronic toilet switchable between cold-water and hot-water and a method of controlling the same. The electronic toilet includes a controller, a water spraying cleaner, a water chiller having a cold-water outlet pipe and a cold-water electromagnetic valve disposed on the cold-water outlet pipe, a water heater having a hot-water outlet pipe and a hot-water electromagnetic valve disposed on the hot-water outlet pipe, and a booster water pump with a water inlet thereof connected to a confluent water outlet pipe of the water chiller through a water outlet pipe of the cold-water electromagnetic valve and the water heater through a water outlet pipe of the hot-water electromagnetic valve, and a water outlet thereof connected to the cleaner.

The invention is a windshield washer preparation, a method for producing the preparation and a device that produces the preparation. The method uses the dehydration of methanol and distillation of dimethyl ether to produce the preparation and a propellant for pressurized packaging. The washer preparation contains deionized water, methanol, dimethyl ether, dimethyl carbonate and additional compounds selected from the group consisting of dyes, de-foaming agents and surfactants. The disclosed method and device can formulate varying combinations of methanol, deionized water and dimethyl ether using the methanol dehydration reaction prior to the addition of dimethyl carbonate. The preparation can be used in automobile washer reservoirs or directly on the windshield using trigger spray applicators or an aerosol can. The excess dimethyl ether from the method can be used taken from the system and stored for future use.