Its appliances and its content.
Likely it would but a test would be required (or contact the manufacturer). One type of smoke detector shines a light on a photoelectric cell and alarms if the steady-state beam is reduced (by smoke). A common smoke detector uses a small radioactive source to ionize air between charged terminals and detects a sudden change in ionization (from smoke, etc.). This type can alarm even when there is a sudden change in fresh air. Of course density of the 'smoke' will affect the results. BTW fog makers usually use a dilute wine and do not produce smoke.
there are these really cool light bulbs which you can get that you can programme to how dim or light you want them to be.
A hybrid car. A programmable thermostat. Insulation in your home. Ground-source heat pumps that recover heat from the earth rather than burning fuel to make heat. A solar panel or wind mill. Heat recovery boilers, that make hot water or steam from waste industrial heat. CO2 sensors in office buildings that only bring in cold outside air when the air needs ventilation. The gizmo that shuts off your computer monitor when you haven't used your computer in a few minutes. Motion detectors that turn off the lights when no one is in the room. Sparking pilot lights, that make a spark to light your boiler instead of having a pilot light that is lit all the time. Photocopiers that shut down when no one is using them. Heck, anything that shuts itself off when no one is using it. Variable-speed drives that power down fans or pumps when only a little bit of air needs to blown across something or only a little bit of water needs to be pumped. Fine-bubble aeration systems in wastewater treatment plants that disperse the oxygen through the sludge instead of using huge blowers that make big bubbles. Great question.