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Design Specifications

Finalised Pump

Flow Rate: 75L/min

Output Current: 5V/0.8A

Max Inflation Pressure: 2.1kPa

Dimensions: 53mm x 53mm x 80 mm

Power Supply: USB

Initial Phase

Rough sketch of Air Pump design: Main holder body with replaceable capsules containing different filters.

Main Holder Body Dimensions:

Length: 450mm
Height: 65mm
Breadth: 65mm

Material:

Main Holder Lid and Body: Acrylic
Seal between Lid and Body (air tight purposes): Rubber
Capsules: 3D printed PLA plastic

Capsules Content:

Baking Soda
Activated Carbon
Calcium Chloride

Sheet filters:

N95
Silver filter

Initial Prototype

Twisting Capsule V2 (L) and Sliding Capsule V1 (R)

Sliding Capsule Lid V1(L) and V2(R)

Assembling of the twisting capsule and its lid.

Second Prototype

Final Capsule Design with twisting mechanism

Capsule Dimensions:

Length: 75mm
Height: 30mm (with cap on)
Breadth: 75mm

Capsule contents:

Baking Soda Tablets
Activated Carbon Pills
Pieces of filter paper soaked in water
Silica Gel Beads

Sheet Filters:

N95 Mask
Surgical Masks

Acrylic Box to house the capsules

Acrylic Box Dimensions:

Outer Dimensions: 86mm x 86mm x 256mm
Inner Dimensions: 80mm x 80mm x 250mm
Diameter of Circle at front and back faces: 65mm

Completed Final Prototype

Capsule contents for Mask usage:

Baking Soda Powder
Pieces of filter paper soaked in water
Fragrance beads

Capsule contents for Wardrobe air purifier usage:

Crushed Activated Carbon Pills
Silica Gel Beads
Fragrance beads

Assembly of different parts:

Attaching of rubber onto 3D printed capsule using Super glue (Left) and Epoxy (right)

Attach rubber to individual capsules using Super glue.
Attach sheet filters onto capsules with double sided tape.
Attach 3D printed pump holders to acrylic box using epoxy.
Attach battery holder onto acrylic body using velcro.
Attach acrylic lid to main acrylic body using velcro.

Full Prototype:

Final full prototype of the air purifier