While North Korea continuously tests missiles, some aren’t taking any chances. People are buying underground shelters to keep themselves safe in case of an emergency, and companies are swamped with requests according to Bloomberg.

Atlas Survival Shelters, which produces shelters in California and Texas, said its best seller is the BombNado, an underground shelter with room for bunk beds. The “all-in-one disaster shelter” starts at $18,999 and is available in five different sizes.

Read: Japan Tells Citizens How To Prepare For Nuclear Attack By North Korea

The company, which has been selling shelters for decades, sells about a dizen underground shelters in which people can live in for six months to a year. Some of the refuge models even have escape tunnels, decontamination rooms and bulletproof hatches.

No one will know about your shelter either, Atlas Survival assures.

“We realize that your shelter is more private than a bank account therefore we are very discreet and do everything we can to keep your shelter absolutely private,” the company says on its site. “We do not keep accurate records on any of our customer locations and only accept wire transfers for payment.”

The company is currently getting many requests from Japan, probably because it’s close to North Korea. The owner of Atlas Survival told Bloomberg Japan is “going hog wild right now.”

Read: Pentagon Successfully Tests THAAD Anti-Ballistic Missile Defense System In Alaska

The requests come after North Korea claimed earlier this month it had launched an intercontinental ballistic missile (ICBM). Pyongyang said its leader, Kim Jong Un, oversaw the test of a Hwasong-14 missile on July 4, its eleventh missile test this year. The launch brings North Korea closer to its goal of hitting the United States. The missile was launched from the Banghyon airfield in Kusong, North Korea and flew 578 miles before it landed in the Sea of Japan.

Recently, the japanese government announced to the public tips to keep safe in case of an attack from North Korea. Back in April, Japan released its “ Actions to Protect Yourself ” guidelines.

Rising S Co., a shelter manufacturer in Texas, has also been overtaken by inquiries. Requests for its steel-clad products have doubled in the past three weeks, with 80 percent of the inquiries coming from Japan. The company sells mini bunkers equipped with a stove, toilet and shower for $39,500. The largest bunker, called “The Aristocrat” is priced at more than $8 million. That refuge shelter has a bowling alley, game room, kitchen, greenhouse gym and even a motor cave, in case you want to save your luxury cars from a bomb.

While those in Japan go to American companies to build their shelters, those in the U.S. closer to Asia are starting to mobilize. The Hawaii Emergency Management Agency began an educational campaign this month to help citizens figure out what to do if an attack were to take place.

“We don’t know the exact capabilities or intentions of the North Korean government, but there is clear evidence that it is trying to develop ballistic missiles that could conceivably one day reach our state,” Vern Miyagi, administrator of the emergency management agency, told Hawaii News Now last week. “Therefore, we cannot wait to begin our public information campaign to ensure that Hawaii residents will know what to do if such an event occurs.”