• 01276 855 847 Nationwide (UK)
  • info@bmscontrols.co.uk Email Us
  • Unit C1D, Fairoaks Airport Surrey, GU24 8HX

BMS Controls Articles

What is a Filter?

What is a Filter?

We’re all familiar with the notion of a filter, but what does that actually mean? This post will explore the different types of filters and how they work. We’ll look at when you should use a filter, as well as how it can help you get better results. Whether you’re using filters in photography or audio processing, this is the guide for you. So let’s dive right in and learn more about what a filter is and how to use them effectively.

What is a filter?

A filter is a screen, plate, or layer of a substance that absorbs light or other radiation or selectively absorbs some of its components. Filters are used to separate substances, to remove impurities, and to improve the quality of materials. They are also used in optics and in photography.

How do filters work?

Filters work by allowing water to pass through a medium while trapping impurities on the surface of the medium. The most common type of filter is a sediment filter, which is used to remove particles of dirt, sand, and other debris from water.

The different types of filters

There are several types of filters that are commonly used in water treatment:

-Granular Activated Carbon (GAC) filters are made of treated charcoal that has been ground into small granules. These filters are effective at removing a wide variety of contaminants, including chemicals, bacteria, and parasites.

-Sand filters use a bed of sand to remove particulates from water. The sand traps the particles, allowing clean water to pass through.

-Cartridge filters contain a pleated paper cartridge that captures contaminants as water passes through it. These cartridges can be replaced as needed.

-Reverse osmosis (RO) systems force water through a very fine membrane to remove contaminants. This type of system is typically used to produce drinking water.

Why are filters important?

Water filters are important because they remove contaminants from water. These contaminants can include bacteria, viruses, and other microorganisms that can cause disease. Water filters also remove inorganic materials such as dirt, sand, and rust particles that can clog pipes and appliances.

How to choose the right filter

When it comes to choosing the right filter for your home, there are a few things you need to take into account. What is the size of your home? What is the climate like? How many people live in your home? All of these factors will help you determine which type of filter is best for your needs.

The first thing you need to do is figure out the square footage of your home. This will help you narrow down the size and type of filter you need. Once you know the square footage, take a look at the climate. If you live in an area with high humidity, you’ll want to choose a filter that can handle that. If you have allergies, you’ll want to find a filter that can remove pollen and other allergens from the air.

Finally, consider how many people live in your home. The more people there are, the more dirt and dust there will be in the air. You’ll want to choose a filter that can handle a high volume of air so that everyone in your home can breathe easily.


In conclusion, a filter is an essential tool for achieving high-quality images. Filters can be used to reduce glare and reflection from light sources, correct the color temperature of your photo, or even add special effects like starburst or bokeh. With so many different filters available on the market today, it’s easy to find one that will help you take your photography game up a notch. Experimenting with different types of filters is sure to yield interesting results and expand your creative possibilities!