Article: For small groups of bubbles, you can use a palm sander and 60-grit sandpaper. For larger bubble clusters, it may be easier to use a floor buffer. Locate the area of your floor with bubbles, and place the sander over top for 5-15 seconds. Move on to the next area until all bubbles are sanded.  Palm sanders cost $14 a day (£9.94) or $56 (£39.76) a week to rent. You can rent a floor buffer for about $33 a day (£23.43) or $120 a week (£85.19). Sanding over your floor scratches up the bubbles, making it easy to apply a fresh coat of epoxy. You can rent a sand blaster to remove all of the epoxy coating. Connect your sand blaster to the air compressor and your watering hose. Turn it on and select the medium or hard blasting option. Then, start at the edge of your floor, and pull the trigger to release the sand. Walk your blaster in a straight line across your floor, and continue until all of your epoxy is removed.  The sand blaster shoots finely ground silica at your floor very quickly, and this removes any unwanted substance from your floor. You will need to rent an air compressor as well as the blaster and purchase sand to use. In total, this will cost about $100 (£70.96 for the day). Make sure your sand blaster is full of silica, and fill up the holding tank if needed. Using a shop vac, go around your floor and get rid of all dust and debris so it doesn’t get trapped in your epoxy. After you vacuum up as much dust as possible, pour some solvent onto a clean rag, and wipe the entirety of your sanded floor. Solvents help the epoxy adhere to your floor evenly, which prevents bubbles from emerging.  Solvents come in many varieties, but for great results you can use a heavy-duty degreaser specifically for epoxy. It costs about $10 (£7.10) at most home supply stores. Once you sand away all the bubbles and clean up any dust, you can easily recoat your epoxy. Touch up small repair areas, or recoat your entire floor, depending on how much of your floor had bubbles. Use a 3⁄4 in (1.9 cm) wide roller, and pour your well-mixed epoxy into a paint tray. Spread the epoxy over your floor starting in the back and working your way towards the front.   Apply your epoxy in thin, even layers for best results. If you want to apply additional coats, wait 24 hours for your epoxy to dry.
Question: What is a summary of what this article is about?
Sand the bubbles using medium-grit sandpaper and a rotary scrubber. Use a sand blaster if you have bubbles in the entirety of your floor. Vacuum the dust and wipe your floor with clean cloth dipped in solvent. Apply another coating of epoxy.

Problem: Article: Many air purifiers use non-washable HEPA filters. Turn off and unplug your appliance before accessing the filter. Check your product manual for specific instructions on how to access your appliance’s filter. At least one foam or activated charcoal filter usually accompanies a non-washable HEPA filter. These accompanying filters typically need to be rinsed for two to three minutes, or until water runs clear. Towel dry your foam or activated charcoal filters, then let them air dry completely for at least 24 hours. Use your vacuum cleaner’s hose with a nozzle or brush attachment to clean your non-washable HEPA filter. Run the attachment over the filter until you’ve removed all debris. Take care not to puncture the filter with the vacuum attachment. Reassemble your appliance after the washable filters have dried. You can wrap the HEPA filter tightly in plastic while you’re waiting for the other filters to dry or during any other extended period of non-use. Some air purifiers have an electronic filter clean reminder. If yours has one, reset it after cleaning your filter.
Summary: Remove the filter from your appliance. Wash your appliance’s other filters. Run a vacuum cleaner hose attachment over the filter. Reassemble the appliance.

INPUT ARTICLE: Article: Scoop 1 tablespoon (5 g) of ground milk thistle seeds into a tea bag or filter and put it in a tea pot. Pour 2 cups (470 ml) of boiling water into the pot and let the tea steep for 3 to 5 minutes. Take the tea bag out and sip the tea slowly. To flavor the tea, consider adding lemon or honey. Measure 5 ounces (147 ml) of alcohol that's at least 100-proof into a glass container. Add 1 ounce (28 g) of harvested milk thistle seeds and screw a lid on the container. Shake the container every day and let the tincture rest for at least 5 to 6 weeks. Strain the tincture before you're ready to use it.  Store the tincture for several years in a dark container with a dropper. To take the tincture by mouth, squeeze 1 to 2 drops onto your tongue 2 to 4 times a day. Place your seeds into a blender or food processor and put the lid on. Pulse the seeds until they're ground into a fine powder. Store the powder in an airtight container for up to 6 months. To use the powder, mix 2 to 3 tablespoons (16 to 24 g) into a smoothie.

SUMMARY: Brew tea to enjoy the antioxidant and anti-inflammatory properties. Make a tincture to mix into lotions, salves, or bath salts. Grind the seeds into a powder for liver pain.

Cast-iron skillets are recommended for the best results, but you can use any frying pan you have. If you are using a cast-iron pan, you can speed up the heating process by placing it into a preheated 350° F (176° C) oven for about 20 minutes and removing it with an oven mitt. Starting with a piping hot cast-iron pan is key. Add a small amount of cooking oil to the pan. Don't use more than 1 tablespoon (0.5 ounces). If your oil smokes, your pan is a little too hot. Take it off the burner for a couple minutes and try again. When the beads of oil spread evenly and shine, the pan is ready for cooking! Place your patty in the middle of the pan and let it cook. Your burger patty will sizzle once it hits the pan and it might even smoke. This is good. Cook it for about 4 minutes. Resist the urge to poke and prod at your patty. Don't push it down into the pan. Leaving your patty alone will allow for it to form a delicious thick crust that will seal in the flavor. Once and only once, when you see the underside starting to turn brown, flip your burger. Cook for an additional 4 minutes on the other side.  The last few minutes of cooking is the perfect time to add a slice of cheese. Place a slice of cheese onto your patty and let it get perfectly melted in the last minute or so of cooking. Your burger is medium-rare at an internal temperature of 130 to 135° F (55 to 57° C). Your burger is medium at an internal temperature of 135 to 150° F (57 to 65° C). Your burger is medium well at an internal temperature of 150 to 165° F (65 to 74° C). Your burger is well done at an internal temperature of 165° F (74° C) or greater.
++++++++++
One-sentence summary --
Preheat your skillet. Test the heat of your pan. Grill your burger. Flip your burger.