Air filters can be extremely expensive. If you're looking to install an air filter on a budget, look no further than our guide to discount air filters.Everyone deserves clean air to breathe. However, sometimes our air isn’t as clean as we’d like it to be due to issues that are out of our control. The WHO says that 92% of people on the planet breath polluted air. If you live in a big city, vehicles pollute the environment with their exhausts.Living in an apartment can also cause issues. Sometimes the cooking odors from other kitchens intrude into yours. Maybe you live in the country, but you’re near a factory or a farm that at times smells less than desirable.No matter your living conditions, there are pollutants that will creep into your environment. One great way to make an impact on your air quality is to ensure that you have good air filters.I know that these can add an extra expense to your pocket book. That's why I’ve researched and picked the best discount air filter for your home! Read below for all of the ins and outs of my pick for the best cheap air filter. The Method What do we want in a cheap air filter? We want something that can take care of not only the big particles and dust that we see with the naked eye, but also odors and the smaller particles that pass by unnoticed.Air purifiers must to go to work behind the scenes and last a long time. You need to be able to swap the filters with ease when it's time for them to retire.A unit that makes very little noise is perfect. Additional positive features include occasional filter change outs, and low energy consumption. AC4825 3-in-1 Air Cleaning System This is one powerhouse of a purifier, without the price tag you’d expect! The AC4825 3 in 1 Air Cleaning System includes a Hepa filter, a UV-C light filter, and a charcoal filter to fight not only the larger particles but tiny ones you wouldn’t be able to see without the use of a microscope.Its Hepa filter is for use on collecting dust and allergens as little as .3 microns. This would include pet dander, plant pollens, and mould spores.The UV-C light technology kills bacteria, germs, and viruses. A charcoal filter catches odors in your home or surroundings stemming from pets, smoking and cooking smells.The tower has 3 speeds, and is best used in rooms up to about medium size.It’s easily moved around. That means it can purify air wherever you and your family are spending the most time and can be shifted as necessary. Check The Best Price Here Pros And Cons There are too many pros for this discount air filter to accurately list them all here, but 3 in 1 filtration is definitely high on the list. Some of the air purifiers out there are specifically made to catch only a select few allergen triggers. Some don’t even begin to have an effect on the strong or harsh odors in a household.You’d have to buy 2 or even 3 different housing units for each individual filter. In the GermGuardian you’re getting complete air purification in one simple tower.The replacement filters aren’t expensive, so you won’t break the bank keeping on top of replacements. Since one lasts 6 to 8 months, you could get nearly a year’s use out of a single cartridge.A con of this tower is that you do still have to replace the filter cartridges and keep an eye on how full they are. None of them are washable, which means that they’re not reusable, which would tend to be more cost efficient. Check The Best Price Here In Summary If you’re looking for one solid discount air filter that does it all, you can’t go wrong with the GermGuardian. The types of allergy triggers this unit will tackle with its three different types of filtration are a bonus to anyone trying to create a healthier environment for their family.You can’t control what people are doing around you, but this is one way that you have some control over your own environment.The tower has a great design, sleek enough that it won’t stand out like an eyesore in any room. For cleaner air, rely on the GermGuardian.