This guide explains how to monitor the air quality in a D&T space, to help to ensure that users avoid breathing in dust and fumes.

Preserving the quality of food by chilling and freezing.

Production of a high-quality surface finish using polishing compounds and a power-driven mop. Final finishing by hand using liquid polish and cloth.

This document is a guide to making a portable device which can be used to monitor the air, in terms of PM2.5.

These tiny particles can come from a variety of sources and could be harmful. This device will indicate when the relative number of particulates in the air is high.  It could be used to monitor the air in a workshop.