Once the bats are gone, it will be necessary to bar any openings that they might be using to make their way in. This can be accomplished by repairing longstanding cracks and damage, installing exclusion devices or in some cases applying new mortar, plaster or shingles. With these things in place, bats will find it difficult or impossible to regain access to your home in the future.  Have a contractor go over the exterior of your home with you to look for places that might admit bats. It’s important that you address each and every possible entry point. If the bats can’t get in through one, they’ll try to find another. Vacuum up dried droppings or scoop them into a garbage bag with a plastic scraper. Afterward, scrub the area thoroughly using an enzyme-based cleaning solution. This will help break down any remaining biological waste products so that no traces are left behind.  Be sure to take the proper safety precautions when cleaning bat guano—wear thick rubber gloves, eye protection and a facemask or respirator to filter the surrounding air.  It’s highly recommended that you leave the cleanup duties to a professional pest removal service. Perform thorough inspections of your attic, basement, crawlspace or other affected areas periodically to search for signs of reinfestation. Look for bats themselves as well as their droppings. Chances are that bats will stay out after you’ve sealed their entryways, but if they do happen to sneak back in you’ll want to find out as soon as possible to keep the problem from getting out of hand.  Unexplainable drafts or debris can offer a clue that bats have gnawed their way in. Though they usually wind up in attics and chimneys, bats have also been known to roost beneath decks, inside screened-in porches and under roofing tiles.

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Write a summary of the previous text in Vietnamese:
Bịt kín mọi lối mà dơi có thể xâm nhập. Làm vệ sinh chất thải còn lại của dơi. Thường xuyên kiểm tra những chỗ dơi có thể trú ngụ.