A variable speed multi directional air ventilation and purification helmet

Abstract

The present invention relates to the development of a variable speed multi directional air ventilation and purification helmet, that provides ventilation inside the helmet, wherein the air ventilated is first purified with the help of the pre-filter membrane which are attached to the vents (FIG. 1 (2, 3 and 4)), placed at variable angles across the shell of the said helmet. Thereafter, the high velocity air travels through the whole helmet, giving ventilation and cooling effect to the head by enabling evaporation of sweat and then exiting from the bottom of the peak of the variable speed multi directional air ventilation and purification helmet, after passing through air purification filters and a micro suction system or mini fan.

What is claimed as: 
     
         1 . A variable speed multi-directional air ventilation and purification helmet, comprising:
 a) a helmet body having an outer shell, an inner casing and a peak;   b) a pre-filter membrane attached to a plurality of vents, placed at variable angles across the outer shell of the helmet;   c) an air suction mini/macro pump or fan, situated at the peak of the helmet;   d) a combination of activated carbon filter, charcoal filter and HEPA filter (High Efficiency Particulate Air Filter) in a form of a consolidated filter cassette;   e) an adjustable air flow guidance system;   f) a tactile switch or button, situated at the side of the helmet; and   g) a toxic gas sensor.   
     
     
         2 . The variable speed multi-directional air ventilation and purification helmet of  claim 1 , wherein:
 a) the air is sucked into the shell of the helmet with the help of the air suction mini/macro pump or fan, fixed inside the peak of the helmet;   b) the air sucked travels through the pre-filter membrane attached to the vents, placed at variable angles across the shell of the helmet,   wherein the air sucked gets cleaned of the macro air pollutants with the help of pre-filters placed across the air vents.   c) the semi-purified air then travels through the helmet, wherein it regulates the temperature of the head;   d) the circulated air laden with moisture from the evaporated sweat is then received at the peak of the helmet, wherein it gets purified with a combination of activated carbon filter, charcoal filter and HEPA filter (High Efficiency Particulate Air Filter) in a form of consolidated filter cassette   e) the clean air then leaves from the vents attached to an air guidance system, situated at the bottom of the peak of the helmet with high velocity.   
     
     
         3 . The variable speed multi directional air ventilation and purification helmet as claimed in  claim 1 , wherein the velocity and direction of the purified air can be manually adjusted and customized using an air guidance system fixed below the air filters. 
     
     
         4 . The variable speed multi directional air ventilation and purification helmet as claimed in  claim 1 , wherein the consolidated filter cassette can be ejected and replaced with the help of a single button push, situated at the side of the helmet. 
     
     
         5 . The variable speed multi directional air ventilation and purification helmet as claimed in  claim 1 , wherein the helmet wearer gets an audio filter replacement alert for replacement of the consolidated filter cassette, intelligently programmed on the basis of usage and surrounding air quality in which the worker is working. 
     
     
         6 . The variable speed multi directional air ventilation and purification helmet as claimed in  claim 1 , wherein the system can be activated and deactivated with a press of a tactile switch or button; on the first press, the system gets activated at minimum air flow speed and on further pressing, the speed of the air flow increases in a step wise manner until at the last press where the system gets deactivated. 
     
     
         7 . The variable speed multi directional air ventilation and purification helmet as claimed in  claim 1 , wherein the gas sensor detects or sense any toxic gas in the vicinity of the worker; once the gas detector detects any toxic gas, the helmet shuts down the air ventilation and purification system. 
     
     
         8 . The variable speed multi directional air ventilation and purification helmet as claimed in  claim 1 , wherein the activated carbon filter absorbs any harmful gases, fumes, chemicals and volatile organic compounds. 
     
     
         9 . The variable speed multi directional air ventilation and purification helmet as claimed in  claim 1 , wherein the charcoal filters absorb any moisture resulting from the sweat on the wearer's head. 
     
     
         10 . The variable speed multi directional air ventilation and purification helmet as claimed in  claim 1 , wherein the HEPA filters takes out any particles ranging from ultra-microscopic particles to the particles entirely detectable to the human eye; the HEPA filter traps the air contaminants, asbestos, dust, dust mites, and pollens. 
     
     
         11 . The variable speed multi directional air ventilation and purification helmet as claimed in  claim 1 , wherein high velocity purified air which is coming out from the air flow guidance system directly on to the wearer's face displaces any static or moving polluted environmental air that earlier surrounded the face of the wearer and forms an air curtain in front of the wearer's face by releasing a directional high velocity purified air thereby masking the wearer from surrounding air pollution without the need of wearing a physical mask and ensuring that the wearer inhales purified air from the air curtain.