> For the complete documentation index, see [llms.txt](https://openair-2.gitbook.io/cyan-1/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://openair-2.gitbook.io/cyan-1/cyan-v1-build-instructions/materials-and-tools-required.md).

# Materials and Tools Required

## Materials

[Sterilite 2.5 Qt FlipTop](<https://www.homedepot.com/p/Sterilite-2-5-Qt-Flip-Top-Box-18038612/203002006?irgwc=1\&cm_mmc=afl-ir-78091-456723-\&clickid=zEwUoH1OxxyLRSBwUx0Mo3ZxUkEUYIXsw0Wsyc0 >) (reaction chamber)

[Tetra Whisper 10 Aquarium Air Pump](https://www.amazon.com/Tetra-Whisper-Easy-Aquariums-Non-UL/dp/B0009YJ4N6) (for enhancing airflow)

[Air Tubing and Air Stone](https://www.amazon.com/gp/product/B0797QFV4D) (for creating the humid air)

[Empty Sabra Hummus Container, 10 oz](https://www.walmart.com/ip/Sabra-Roasted-Red-Pepper-Hummus-10-oz/10850131) or equivalent shape container - needed only for spacing the lid below in the right position above the water

[Lid from 1 quart yogurt container](https://www.homedepot.com/p/HDX-1-qt-Multi-Mix-Pail-2M3/202264024) or equivalent - needed only for holding a coffee filter that holds the calcium hydroxide

You will also need a high purity source of calcium or magnesium hydroxide. Such calcium hydroxide can be purchased as pickling lime or as kalkwasser for saltwater aquariums.

## Tools Needed

* Scissors (useful for cutting air tubing)
* If you do not already have a scale for weighing, you will need one that has a precision to the nearest 0.1 g or less (0.01 g is preferable).

Tools for the optional Box and Fan setup

* Drill with 8/32” drill bit (for fan mounting holes)
* Box cutter (for scoring and cutting the fan ventilation holes)
* Sharpie or other permanent marker (optional but very useful)
* Small reciprocating saw (optional - would be useful for cutting the round ventilation holes on the sides of the file box)

## Optional Materials for Testing

* 5% distilled white vinegar (for testing for CaCO3)
* Spoon (for dispensing Ca(OH)2 without the need to pour it)

## Assembly Time Required

Minimal unit assembly takes a few minutes, assuming you’ve already eaten the hummus from the hummus container. The file box + fan assembly can be done in 2 hours following the provided instructions.