fans.md

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page	Filters

Mini 60mm filter 33mm BLDC fan

video

• ~$10 2 pc 60mm x 85mm Filter
• ~$8 9v battery
• ~$20 speed control brushless fan (adjustable) or $5 alternative brushless fan (noisy)
• ~$3 9v to barrel connector
• ~$3 Barrel to screw terminal
• ~$5 40mm fan guard
• ~$3 2.5mm bungee cord

Optional battery upgrade

• XT-60 > Barrel jack
• 3s Lipo
• 3s Lipo USB charger

Tools needed

• Small screwdriver.

Portable 150mm filter 5v $38

• ~$10 Filter PM501HF, UK , US, Int, About

• $3 mini battery pack

• $12.15 3x 18650 batteries ~3000Mah

• $4.15 120mm 5v fan

• $2.51 Fan Guard

• $1.70 3mm bungee cord to attach fan

• $2.35 speed control screw terminal

• $2.34 right angle USB A cable > Wire

• $3.53 GD90 cap

• 3d print joiner (optional) buy

  

Will require some crafting

• Small phillips
• Craft knife
• Drill maybe

Instructions

• Place GD90 cap in the bottom of the filter

• Place battery on top & estimate position of USB socket

• In GD90 cap, cut out USB socket, hole for speed control switch & Make cable hole for USB cable

• Cut female end of USB cable and pass through the hole.

• Place speed control circuit board into hole and secure with nut

• Attach power and fan cables to the speed controller

• Put all the bits together

  

  Wired 150mm filter ~£15 ($20)

• ~$10 120mm USB fan with speed control, UK US

• ~$10 Filter PM501HF, UK , US, Int, About

Affordable filter for a UK/US context

Above image and concept from @thefandilier

Micro 60mm filter

Somewhat documented here https://github.com/samuk/DIY-HEPA/

Notes

Some of the Aliexpress links are affiliate, cos why not. Battery versions currently untested pending parts.

PM501HF/ Pureburg filter dimensions are ID 9cm, OD 15cm, height 10.8cm.

Other alternate filters are documented here by @ridgeocean

Deep dive into PC fans