How to pass String filter in a change from Mysqli to PDO in PHP?

Question

// Mysqli

$vf = mysql_query('SELECT id, cnpj, id_erp, fantasia, razao FROM usuarios WHERE nivel="3" AND
(
nome LIKE "%' . limpa($_POST['termo']) . '%" OR
email LIKE "%' . limpa($_POST['termo']) . '%" OR
) ORDER BY nome ASC');

//Conversão para PDO: 

$vf = $conn->prepare('SELECT id, cnpj, id_erp, fantasia, razao FROM usuarios WHERE nivel=:nivel AND ( nome LIKE :nome OR  email LIKE :email ) ORDER BY nome ASC');

$vf->execute(array(
    'nivel' => "3",
    '%nome%' => limpa($_POST['termo']),
    '%email%' => limpa($_POST['termo']),

));

I wonder if the % filter is passed in the array or in the query itself, in PDO...

$vf->execute(array(
        'nivel' => "3",
        'nome' => %limpa($_POST['termo'])%,
        'email' => %limpa($_POST['termo'])%,
    
    ));

Or would it be like above?