It’s imperative that the orchid pots are equipped with drainage holes to allow excess water to run out of the pot. Otherwise, root rot may kill your beautiful plants! If your orchids are in pots without drainage holes, repot them into new ones. Put a saucer or drip tray underneath the pots to prevent excess water from spilling on your floor. You can choose between a bark-based or moss-based potting medium. A bark-based medium drains well and will help prevent overwatering, but can break down quickly. A moss-based medium retains moisture better but it necessitates careful watering and  may need to be repotted more often. If your orchids aren’t in the right kind of potting medium, repot them to help them thrive. Orchids need strong, but indirect, light to thrive. If you can, place them near south- or east-facing windows to ensure they receive the right amount and intensity of sunlight. If you only have a west-facing window, cover it with a sheer curtain to keep the orchids from getting burned. Placing the pots near a north-facing window may not provide them with enough light to bloom. Orchids thrive in moderate temperatures, and will die if they get too cold. Though the correct temperature varies based on the species of orchid, in general you should aim to keep your home above 60 °F (16 °C) at night. During the day, the temperature should be 10-15 degrees warmer than that. Because orchids aren’t grown in soil, you must provide air circulation to keep the roots healthy. In mild months, you can open windows in your home to provide a gentle breeze. Otherwise, use an overhead fan on a low setting or an oscillating fan directed away from the orchids to keep the air from getting stale or stagnant.

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Write a summary of the previous text in Vietnamese:
Sử dụng chậu trồng cây có lỗ thoát nước. Tìm loại giá thể thoát nước nhanh chuyên dành để trồng hoa lan. Đặt chậu cây gần cửa số hướng nam hoặc hướng đông, nếu có thể. Duy trì nhiệt độ trong nhà khoảng 16-24 độ C. Tạo điều kiện cho không khí lưu thông nhẹ.