Battery Operated Air Purifier

by Southern grey desert foxes in Circuits > Electronics

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Battery Operated Air Purifier

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The Battery operated air purifier is simply to freshen up small rooms that lack air conditioning . Although this is about one cubic foot and weighs about three to 4 pounds.Testing to see how well it works was with a grove dust sensor and the air purifier halved the concentration of particles in the air . The testing was done in a closed environment and data that came as result of outside influence is exempt.The air flow comes out the the four sides of the pink lamp shade and still maintains a consistent air flow. Examples of uses is tents,shed, and etc.You will be protecting your nose from a siege of allergens and bad odors in a crowded tent while you try to go to sleep.

http://youtu.be/jK_3GKA6Pm0

Materials

Tan lamp shade rectangular

Pink lamp shade circular

8"x8"x1" merv filter 8 pleated

16# felt pads

Electrical tape

2# Rubber o rings

Duct tape

Electrical motor and fan blade from o2 cool

Leadless solder

Artist palette plastic

mini rocker switch

6# c batteries and the battery holder

Insulated wires

Clothes hanger

Carbon filter

Tools

Soldering iron

Sharpie

Tin snips

Scissors

Pliers

Respirator mask

Goggles

Wire cutters

Philips head screw driver

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I took the motor and fan blade from the o2 cool simply because shipping seemed expensive ans long since of Christmas season.

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No the wires weren't already like that from o2 fan you have to solder the wires on the motor

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Take the old tan lamp shade and place the the motor in it and it should be a tight fit but don't glue it yet

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i put on some electrical tape hoping that motor wouldn't slide out

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i simply put on a two rubber o ring on bottom

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and put on the old fan blade on the motor

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And at the larger end simply pressed the merv filter and taped it with metallic tape making sure that no air could escape.

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then put on the carbon filter measure it out and make sure it is a little bit smaller than the merv filter

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Then tape it as long as the tape seals it excellently it doesn't matter what is used although obviously avoid hazardous

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Then put 4 felt pads on top of each other at each corner.

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make sure it isn't off balance

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Then double check and seal off it once more with tape

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simply cut a hanger with tin snips bend the opposite it other way of the hook and put it through middle hole of the battery holder

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Although yo want to get the the batter holder really close to the top

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put on the circular shade on the tan lamp shade and then attach the pack as shown in the picture although i did put some electrical tape at the top of the battery holder

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make sure the battery holder doesn't show

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keep the wires nice and easy to take off

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one wire hooks up to just the battery holder while the other fan blade to the mini rocker switch and another wire mini rocker switch to battery holder . Turn it on and experiment till the air is being sucked in from the bottom

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the trace the circle on to the plastic artist palette and spare the hole

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cut the circle i used tin snips it was sort of like butter

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now tidy up the insulate wires and cut to the length that is nice and short but sticks out one inches above the top of the tan lamp shade.

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the poke two insulated wires through the hole in the palette.

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then secure each wire to the rocker switch as shown in the picture

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add a little slit for the hanger and start taping the plastic palette down

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it important that you tape around the rocker switch, tape the hanger and it does necessarily mean that taping the plastic palette needs to be air tight fit.

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your finished product varies in size since a 12"x12"x1" filter would require larger lamp shades but its basically still the same formula but a change in materials

mine looks likes like this

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This the system I used but to start out put the sensor and the laptop in a container the sensor would measure every 30 sec or so and it would show up on the serial monitor. this was largest clear plastic container I had and I also needed to check in on the laptop since the battery is bad and it mainly relies on the electrical outlet. So it has about 5 to ten minutes or so .

43993,0.15,76.8

43993 is the lowpulseoccupancy

0.15 ratio

76.8 concentration

sensor can detect as low as 1 nanometer in particulate size


http://www.seeedstudio.com/wiki/Grove_-_Dust_Senso...

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sealed in the container i did interrupt it once just a little nervous

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lifted the lid and quickly took a picture after enough time had past

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here is a close up of data

Without air purifier

43993,0.15,76.8 starting exempt

248069,0.83,428.63

153109,0.51,265.17

Exempt checked in

173064,0.58,297.54

37570, 0.13, 65.65 exempt ended

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now this with the air purifier

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Air purifier on

0,0.00,0.62 starting exempt

28833,0.10,50.56

Exempted checked in

84782,0.28,147.30

47923,0.16, 83.59

60062,0.20,104.58

100464,0.33,174.37

0,0.00,0.62 exempt ended